CVE-2026-57226

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, HTTP SWF decompression with the non-default swf-decompression feature and an unsafe decompress-depth can use the configured depth when allocating in src/util-file-decompression.c instead of limiting the allocation to the Flash file's actual data requirement. A crafted SWF response can therefore trigger an integer-related heap buffer overflow and crash Suricata; the default disabled feature and default depth are not affected. This issue is fixed in versions 8.0.6 and 7.0.17.

• https://github.com/OISF/suricata/commit/82af0aeb7cec39e206a9ca96c4966425eddeaa74Patch
• https://github.com/OISF/suricata/commit/b63224871b0f8b0b1f7b8c22d05ba8a5c5f69fbbPatch
• https://github.com/OISF/suricata/commit/d9fae18432501674338e28bd33e35788c95d4a98Patch
• https://github.com/OISF/suricata/pull/15704Patch
• https://github.com/OISF/suricata/releases/tag/suricata-7.0.17Release Notes
• https://github.com/OISF/suricata/releases/tag/suricata-8.0.6Release Notes
• https://github.com/OISF/suricata/security/advisories/GHSA-p33j-r48q-3jcfMitigation
• https://redmine.openinfosecfoundation.org/issues/8642Exploit